Malicious PDF — malware analysis report

Static analysis result for SHA-256 dabe0712b6d5ec37…

MALICIOUS

PDF

74.3 KB Created: 2021-09-30 17:54:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: 842bf86337935b565509c1ea0066aaf4 SHA-1: e5b664c1ce046d5c64388bf91cfe8f5bdbccbe94 SHA-256: dabe0712b6d5ec37d2cffc94faa0ebde13df5d442b7a4d06b996f94bac882f05
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, with many pointing to disposable domains, indicating a link farm designed to host malicious content or phishing pages. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic and the high ML score strongly suggest malicious intent. While no scripts were directly extracted, the structure and URL patterns are consistent with phishing or malware distribution campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fipaluvalanava.pdf In PDF document text
    • http://vizit-k.net/uploads/editor/files/sepitugexajajimip.pdfIn PDF document text
    • http://abwingstop.com/uploads/files/78960715074.pdfIn PDF document text
    • http://hotelrealerimini.it/userfiles/files/sisuvoriwukafasejefi.pdfIn PDF document text
    • http://www.leasebridge.com/CKUPimg/files/71348975609.pdfIn PDF document text
    • http://carrasvilla.es/uploads/files/86711443443.pdfIn PDF document text
    • http://iproperty.ae/userfiles/file/10366595173.pdfIn PDF document text
    • https://malinaionescu.ro/userfiles/file/vemajevumelo.pdfIn PDF document text
    • http://e3edu.vn/public/ckfinder/core/connector/php/connector.phppublic/uploadsfiles/sotexejidekoxudegomiletek.pdfIn PDF document text
    • https://lifecareproduct.in/ckfinder/userfiles/files/66519261910.pdfIn PDF document text
    • https://greenboo.vn/uploads/files/pubofefaxovasesimuwufegi.pdfIn PDF document text
    • http://af.ssla.ru/images/fornews/files/475730575.pdfIn PDF document text
    • https://pragatitic.org/ckfinder/userfiles/files/nujeko.pdfIn PDF document text
    • https://wonwon.taipei/photo/file/49366718788.pdfIn PDF document text
    • http://finchamauto.com/pics/kabaxorux.pdfIn PDF document text
    • https://jlgardner.org/home/jlg/public_html/ckfinder/userfiles/files/27110469227.pdfIn PDF document text
    • http://lezeckastenakosice.sk/upload/files/51454170644.pdfIn PDF document text
    • https://dermatologie-francophone.com/userfiles/file/genalizazutopuviravu.pdfIn PDF document text
    • http://gongin.humenia.com/upload/userfiles/2021/09/files/210909072359.pdfIn PDF document text
    • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/fff8bf601b1a2cc023b552422363ec5f/wafimerijifukilanomaniti.pdfIn PDF document text
    • https://snqrsl.quebec/upload/editor/file/9363668192.pdfIn PDF document text
    • https://conexusinternational.com/ckfinder/userfiles/file/tusotapekegejuberivip.pdfIn PDF document text
    • https://pilot-nav.com/ckfinder/userfiles/files/45426175147.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=x8+speeder+domino+island+apkPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC04 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d416.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD416 18028 bytes
SHA-256: 42cd4595651ab72fb12abc02f959e7d771225cd21688ce2990e8a08cf18ed8b6
font_02_sfnt_off000102db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102DB 10764 bytes
SHA-256: 7ca93f75072956dafb196f068044dac3313f1f2a12c87e05c45b2a0e104c3e44